The Bowling Green Fire Department secured the area for the time being. Wendell Strode, the executive director, said firefighters estimated the hole is approximately 25 to 30 feet deep and about 40 feet wide.

Strode said the one millionth Corvette, which was donated to the museum by Chevrolet, was among the cars that fell into the sinkhole.

The statement went on to say "it is with heavy hearts that we report that eight Corvettes were affected by this incident."

Those cars include:

1993 ZR-1 Spyder on loan from General Motors

2009 ZR1 "Blue Devil" on loan from General Motors

The other six vehicles were owned by the National Corvette Museum including:

1962 Black Corvette

1984 PPG Pace Car

1992 White 1 Millionth Corvette

1993 Ruby Red 40th Anniversary Corvette

2001 Mallett Hammer Z06 Corvette

2009 White 1.5 Millionth CorvetteNo one was injured as no one was in or around the museum at the time of the collapse.

None of the cars affected were on loan from individuals. The museum remains open, but the Skydome section will be closed until further notice.

Strode said structural engineers would assess the stability of the surrounding areas later today.

2014 is the museum's 20th Anniversary and officials said they "look forward to re-opening the Skydome exhibit area very soon."